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Hemoglobin Variants in Dairy Cattle

Department of Dairy Science University of Illinois, Urbana

ABSTRACT

A number of hemoglobin variants have been known and studied in humans for some time (5), but only recently has the attention of investigators turned to the various species of livestock. In the past year, Evans et al. (4) have reported a hemoglobin variant in sheep, and still more recently, Bangham (1) has reported electrophoretically different hemoglobins in certain cattle breeds of Great Britain. Prior to the publication of his paper, these observations were made known to the authors by personal communication. Because the origins of our breeds of cattle are in common with those of Europe, and since no study of this nature had been reported in the United States, it seemed desirable to investigate the possible existence of hemoglobin variants in our American cattle.

As a source of preliminary information, animals in the purebred and crossbred herds of the University of Illinois were tested. Because animals less than three months of age gave undefinable results, our study was restricted to those that were older.